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block-5.7-2020-05-22 

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Merge tag 'block-5.7-2020-05-22' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Two fixes for null_blk zone mode"

* tag 'block-5.7-2020-05-22' of git://git.kernel.dk/linux-block:
  null_blk: don't allow discard for zoned mode
  null_blk: return error for invalid zone size
This commit is contained in:
Linus Torvalds 2020-05-22 11:10:42 -07:00
parent b09ca17a2a 1592cd15ee
commit db9f384785
2 changed files with 11 additions and 0 deletions
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7
drivers/block/null_blk_main.c
View File

@ -1535,6 +1535,13 @@ static void null_config_discard(struct nullb *nullb)
{
if (nullb->dev->discard == false)
return;
if (nullb->dev->zoned) {
nullb->dev->discard = false;
pr_info("discard option is ignored in zoned mode\n");
return;
}
nullb->q->limits.discard_granularity = nullb->dev->blocksize;
nullb->q->limits.discard_alignment = nullb->dev->blocksize;
blk_queue_max_discard_sectors(nullb->q, UINT_MAX >> 9);

4
drivers/block/null_blk_zoned.c
View File

@ -23,6 +23,10 @@ int null_init_zoned_dev(struct nullb_device *dev, struct request_queue *q)
pr_err("zone_size must be power-of-two\n");
return -EINVAL;
}
if (dev->zone_size > dev->size) {
pr_err("Zone size larger than device capacity\n");
return -EINVAL;
}
dev->zone_size_sects = dev->zone_size << ZONE_SIZE_SHIFT;
dev->nr_zones = dev_size >>